CN104720305B - Folding type multifunctional drawing table - Google Patents

Abstract

The invention relates to a foldable multifunctional drawing table, which comprises an upper table top, a lower table top, upper table legs, a table top tilting mechanism, a lower table leg, a table lifting mechanism, a tool box and a tool box self-locking mechanism; On the lower tabletop; the front end of the lower tabletop is hinged to the upper table leg; the tabletop tilting mechanism is installed on the upper table leg, which abuts against the bottom of the lower tabletop; the upper table leg is inserted into the lower table leg, and can move along the The lower table leg is lifted; the desktop lifting mechanism is installed on the upper table leg and the lower table leg; the lower end of the tool box is pivotally connected to the lower table leg, and the upper end is connected to the lower table leg; the tool box self-locking mechanism The utility model is installed on the tool box; a clamping plate is arranged on the lower table leg; the self-locking mechanism of the tool box is clamped with the clamping plate. The invention can freely adjust the height and the angle and size of the desktop, so that people can maintain the most comfortable posture during use, which is beneficial to relieve fatigue and improve the work efficiency of design and drawing, and has good practicability.

Description

A foldable multifunctional drawing table

technical field

The invention relates to a drawing table, in particular to a foldable multifunctional drawing table, which belongs to the technical field of teaching appliances.

Background technique

As I enter university, due to professional needs, I often need to draw, and sometimes it may take several days to complete a picture. When drawing, it is often necessary to change the angle to review, but the table cannot freely change the angle, which makes drawing very inconvenient; sometimes in class, the teacher needs the students to draw in class after explaining the knowledge points of drawing , but the desk in the teacher is not suitable for drawing, which greatly reduces the quality and speed of drawing. The heights of the drawing desks in the school are all uniform, but the heights of the students are different. When drawing, the appropriate height of the drawing table is conducive to reducing the fatigue of drawing and is conducive to drawing for a long time. Therefore, we considered whether it is possible to make a new type of drawing table that integrates the tilt angle, format, and height of the drawing board desktop.

Therefore, in order to solve the above-mentioned technical problems, it is really necessary to provide an innovative folding multifunctional drawing table to overcome the above-mentioned defects in the prior art.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide a foldable multi-functional drawing table that can freely adjust the height of the table, adjust the angle and size of the table top, and have a self-locking function of the tool box.

In order to achieve the above object, the technical solution adopted by the present invention is: a foldable multifunctional drawing table, which includes an upper table top, a lower table top, upper table legs, a table top tilt mechanism, a lower table leg, a table top lifting mechanism, a tool box and a tool box. Box self-locking mechanism; wherein, the upper table top is pivotally connected to the lower table top; the front end of the lower table top is hinged to the upper table leg; the table top tilting mechanism is installed on the upper table leg, and it abuts against the bottom of the lower table top; The upper table leg is inserted into the lower table leg, and can be raised and lowered along the lower table leg; the desktop lifting mechanism is installed on the upper table leg and the lower table leg; the lower end of the tool box is pivotally connected to one side of the lower table leg, and the upper end It is connected to the lower table leg through a connecting rod; the toolbox self-locking mechanism is installed on the toolbox, and a clamping plate is arranged on the lower table leg; the toolbox self-locking mechanism can be clamped with the clamping plate.

The foldable multifunctional drawing table of the present invention is further configured as follows: the upper table top includes a first table top and a second table top, and the first table top and the second table top are connected by several hidden hinges.

The foldable multifunctional drawing table of the present invention is further configured as follows: the desktop tilting mechanism includes a first handwheel shaft, a first bevel gear, a second bevel gear, a drive screw, a thrust ball bearing and a drive plate; wherein, the One end of the first handwheel shaft is equipped with a first handwheel, and the other end is equipped with the first bevel gear; the first bevel gear is meshed with the second bevel gear; the driving screw and the second bevel gear are fixed connected, and linked with the second bevel gear; the lower part of the drive screw is matched with the thrust ball bearing, and the upper part is screwed with the drive plate; the drive plate is installed on the bottom of the lower table.

The foldable multifunctional drawing table of the present invention is further configured as follows: a guide frame is installed on the bottom of the lower table top, and the guide frame is sheathed on the driving screw.

The foldable multifunctional drawing table of the present invention is further configured as follows: the desktop lifting mechanism includes a second handwheel shaft, a large sprocket, a small sprocket, a main shaft, a large bevel gear, a small bevel gear, a T-shaped screw rod, and a lifting nut; Wherein, the second hand wheel shaft is pivotally connected to the lower table leg, and a second hand wheel is installed on it; the large sprocket is fixed on the second hand wheel shaft; the small sprocket is fixed on the main shaft, and it is connected with the large The sprockets are connected by a chain; the main shaft is also pivotally connected to the lower table leg, on which the large bevel gear is installed; the small bevel gear meshes with the large bevel gear, which is fixed on the T-shaped screw. Bottom; the lower table leg is provided with a mounting seat, and the T-shaped screw rod is pivotally connected to the mounting seat; the lifting nut is fixedly connected to the upper table leg, and it is screwed with the T-shaped screw rod.

The foldable multifunctional drawing table of the present invention is further configured as follows: a foot-operated flywheel fine-tuning mechanism is installed on the main shaft.

The foldable multifunctional drawing table of the present invention is further configured as follows: a reinforcing plate is provided on the upper part of the lower table leg, and the reinforcing plate clamps the upper table leg.

The folding multifunctional drawing table of the present invention is further set as follows: the self-locking mechanism of the toolbox includes a base, a push rod, a lock block and a spring; the base is fixed on the toolbox; the push rod is limited to the base on; the spring abuts between the push rod and the base; the lock block is located on the top of the push rod.

The foldable multifunctional drawing table of the present invention is further configured as follows: a card slot capable of accommodating the locking block is provided on the card plate.

The foldable multifunctional drawing table of the present invention is further configured as follows: a rubber strip is provided between the upper table top and the lower table top.

Compared with the prior art, the present invention has the following beneficial effects: the lifting mechanism of the foldable multifunctional drawing table of the present invention adopts a sprocket transmission mechanism and a bevel gear lifting mechanism, and uses a reasonable transmission ratio to make the tabletop move quickly and stably. rise. A foot-operated flywheel fine-tuning mechanism is also added, which can more accurately adjust to the height required by the plotter. The self-locking property of the T-shaped screw is used to realize the function of stopping and locking immediately. There is a turntable under the desktop, which allows the desktop to rotate at any angle, which is convenient for drafters to review drawings from all directions; and invisible hinges are installed on the sides of the two drawing desktops, allowing the desktop to seamlessly switch between A0 and A1 drawing sizes. The desktop tilting mechanism cleverly uses a set of bevel gear lifting mechanism, and uses the principle of combining bevel gear transmission and thread transmission to ensure the strength and stability of the desktop when it is tilted. In addition, a tool box self-locking mechanism is added. The tool box adopts a humanized design, which can better store items, and the middle is divided into blocks to prevent items from being confused; the self-made spring bayonet can realize self-locking, reduce operations and be more convenient.

The foldable multifunctional drawing table of the present invention is designed based on ergonomics, which can make people maintain the most comfortable posture when using it, which is beneficial to relieve fatigue and improve the work efficiency of design and drawing, and is suitable for all kinds of colleges and universities and vocational schools. School mechanical (architectural) drawing basic teaching and professional design, as well as professional use of art design.

Description of drawings

Fig. 1 is a perspective view of the foldable multifunctional drawing table of the present invention.

Fig. 2 is a front view of the foldable multifunctional drawing table of the present invention.

Fig. 3 is a perspective view of another viewing angle of the foldable multifunctional drawing table of the present invention.

Fig. 4 is an enlarged view at point A in Fig. 3 .

Fig. 5 is an enlarged view at B in Fig. 3 .

detailed description

Please refer to accompanying drawings 1 to 5 of the description, the present invention is a foldable multifunctional drawing table, which consists of an upper desktop 1, a lower desktop 2, upper table legs 3, a desktop tilting mechanism 4, lower table legs 5, Several parts such as desktop lifting mechanism 6, toolbox 7 and toolbox self-locking mechanism 8 are formed.

Wherein, the upper desktop 1 is pivotally connected to the lower desktop 2, so that the upper desktop 1 can be rotated at any angle, which is convenient for the drafter to examine the drawings from various directions. The upper desktop 1 includes a first desktop 11 and a second desktop 12, the first desktop 11 and the second desktop 12 are connected by a number of invisible hinges 13 to realize the opening and closing of 0°-180°, so that the upper Desktop 1 can seamlessly switch between A0 and A1 drawing sizes.

The front end of the lower table top 2 is hinged to the upper table leg 3, which can be inclined at a certain angle. A rubber strip 21 is arranged between the upper desktop 1 and the lower desktop 2 to increase friction.

The desktop tilting mechanism 4 is installed on the upper table leg 3, which abuts against the bottom of the lower table top 2, so that the lower table top 2 can be tilted at a certain angle. This desktop tilting mechanism 4 is made up of several parts such as the first hand wheel shaft 41, the first bevel gear 42, the second bevel gear 43, the driving screw rod 44, the thrust ball bearing 45 and the driving plate 46.

Wherein, a first handwheel 47 is installed on one end of the first handwheel shaft 41 , and the first bevel gear 42 is installed on the other end. The first bevel gear 42 meshes with the second bevel gear 43 . The driving screw 44 is fixedly connected with the second bevel gear 43 and is linked with the second bevel gear 43 . The lower part of the driving screw 44 cooperates with the thrust ball bearing 45 , and the upper part is screwed with the driving plate 46 . The thrust ball bearing 45 is installed on the upper table leg 3 . The driving board 46 is mounted on the bottom of the lower desktop 2 . A guide frame 48 is mounted on the bottom of the lower table top 2 , and the guide frame 48 is sheathed on the driving screw 44 .

The desktop tilting mechanism 4 drives the first bevel gear 42 by rotating the first hand wheel 47, and the first bevel gear 42 links the second bevel gear 43 and the drive screw 44 in turn to make the drive screw 44 rotate; the drive screw 44 By pushing the driving plate 46 , the driving plate 46 links the lower desktop 2 to make the lower desktop 2 tilt, and then the upper desktop 1 tilts.

The upper table leg 3 is inserted into the lower table leg 5, and can be raised and lowered along the lower table leg 5, so that the drawing table can be raised and lowered. A reinforcing plate 51 is provided on the upper part of the lower table leg 5 , and the reinforcing plate 51 clamps the upper table leg 3 .

Described desktop lifting mechanism 6 is installed on the upper table leg 3 and the lower table leg 5, and it consists of a second hand wheel shaft 61, a large sprocket wheel 62, a small sprocket wheel 63, a main shaft 64, a large bevel gear 65, a small bevel gear 66, Several parts such as T-shaped screw mandrel 67 and lifting nut 68 are formed.

Wherein, the second handwheel shaft 61 is pivotally connected to the lower table leg 5, on which a second handwheel 611 is installed. The large sprocket 62 is fixed on the second handwheel shaft 61 . The small sprocket 63 is fixed on the main shaft 64 and connected to the large sprocket 62 by a chain 69 . The main shaft 64 is also pivotally connected to the lower table leg 5, on which the large bevel gear 65 is installed, and a foot-operated flywheel fine-tuning mechanism 641 is also installed on the main shaft. The small bevel gear 66 meshes with the large bevel gear 65, which is fixed at the bottom of the T-shaped screw mandrel 67. The lower table leg 5 is provided with a mounting seat 52 , and the T-shaped threaded rod 67 is pivotally connected to the mounting seat 52 . Described lifting nut 68 is affixed on the upper table leg 3, and it is screwed with T-shaped screw mandrel 67 phases.

The desktop lifting mechanism 6 drives the second handwheel shaft 61 by rotating the second handwheel 611, and drives the large sprocket 62, chain 69, small sprocket 63, main shaft 64, large bevel gear 65, and small bevel gear 66 in sequence; Small bevel gear 66 links T-shaped screw mandrel 67, by the rotation of T-shaped screw mandrel 67, lifting nut 68 is lifted up and down along T-shaped screw mandrel 67, thereby upper table leg 3 is lifted along lower table leg 5. And the self-locking performance of T-shaped screw rod 67 allows the table to stop and lock immediately. The pedal type flywheel fine-tuning mechanism 641 is fine-tuned by stepping on the pedals, and can more accurately adjust to the required height.

The lower end of the tool box 7 is pivotally connected to one side of the lower table leg 5 , and the upper end is connected to the lower table leg 5 through a connecting rod 9 .

The toolbox self-locking mechanism 8 is installed on the toolbox 7 . A clamping plate 53 is provided on the lower table leg 5 ; the toolbox self-locking mechanism 8 can be clamped with the clamping plate 53 .

Specifically, the toolbox self-locking mechanism 8 can ensure that the toolbox 7 is vertically fixed, and it is composed of a base 81 , a push rod 82 , a locking block 83 and a spring 84 . The base 81 is fixed on the toolbox 7; the push rod 82 is limited on the base 81; the spring 84 abuts between the push rod 82 and the base 81; the lock block 83 is located on the push rod 82 the top of. A locking slot 531 capable of receiving the locking block 83 is defined on the locking plate 53 .

When the toolbox 7 is turned upwards, the lock block 83 of the toolbox self-locking mechanism 8 can be automatically snapped into the upper draw-in groove 531, and when the toolbox is turned downward, the lock block 83 can also be automatically released from the draw-in groove 531 It is convenient for users to access tools.

The specific implementation above is only a preferred embodiment of this creation, and is not intended to limit this creation. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this creation should be included in this creation. within the scope of protection.

Claims (8)

1. a folding utility drawing table, it is characterised in that: include desktop, lower desktop, upper table leg, desktop dumper Structure, lower table leg, desktop lifting mechanism, workbox and workbox self-locking mechanism；Wherein, described upper desktop is articulated in lower desktop On；The front end of described lower desktop is hinged on upper table leg；Described desktop leaning device is installed on upper table leg, and it abuts to lower table The bottom in face；Described upper table leg inserts lower table leg, and can lift along lower table leg；Described desktop lifting mechanism be installed on upper table leg and On lower table leg；The lower end in described workbox is pivoted to the side of lower table leg, and upper end is connected on lower table leg by connecting rod；Described work Tool case self-locking mechanism is installed on workbox；It is provided with a clamp in lower table leg；Described workbox self-locking mechanism can block mutually with clamp Connect；The described face that serves includes that the first desktop and the second desktop, described first desktop and the second desktop are connected by some latent hinged flaps Connect；Described desktop lifting mechanism includes second-hand's wheel shaft, big sprocket wheel, minor sprocket, main shaft, bevel gear wheel, bevel pinion, T Type screw mandrel and lifting nut；Wherein, described second-hand's wheel shaft is articulated on lower table leg, and it is provided with one second handwheel；Institute State big sprocket wheel to be immobilizated on second-hand's wheel shaft；Described minor sprocket is immobilizated on main shaft, between itself and big sprocket wheel by a chain even Connect；Described main shaft is also articulated on lower table leg, and it is provided with described bevel gear wheel；Described bevel pinion and bevel gear wheel are nibbled Closing, it is installed in the bottom of T-shaped screw mandrel；Described lower table leg is provided with mounting seat, and described T-shaped screw mandrel is articulated in mounting seat

On；Described lifting nut is fixed on upper table leg, itself and T-shaped screw mandrel bolt.

2. folding utility drawing table as claimed in claim 1, it is characterised in that: described desktop leaning device includes first-hand Wheel shaft, the first angular wheel, the second angular wheel, driving screw rod, thrust ball bearing and driving plate；Wherein, described first Hand wheel shaft one end is provided with one first handwheel, and the other end is provided with described first angular wheel；Described first angular wheel and second Angular wheel engages；Described driving screw rod and the second angular wheel are affixed, and and the second angular wheel linkage；Described driving screw rod Bottom and thrust ball bearing coordinate, top and drive plate bolt；Described thrust ball bearing is installed on upper table leg；Described drive Dynamic plate is installed on the bottom of lower desktop.

3. folding utility drawing table as claimed in claim 2, it is characterised in that: the bottom of described lower desktop is provided with guiding Frame, this guiding carrier is set on driving screw rod.

4. folding utility drawing table as claimed in claim 1, it is characterised in that: on described main shaft, it is provided with one foot-operated Flywheel micro-adjusting mechanism.

5. folding utility drawing table as claimed in claim 4, it is characterised in that: it is provided with reinforcing in the top of described lower table leg Plate, this securing plate clamps described upper table leg.

6. folding utility drawing table as claimed in claim 1, it is characterised in that: described workbox self-locking mechanism includes base Seat, push rod, lock dog and spring；Described pedestal is immobilizated on workbox；Described push rod is limited on pedestal；Described spring supports It is connected between push rod and pedestal；Described lock dog is positioned at the top of push rod.

7. folding utility drawing table as claimed in claim 6, it is characterised in that: described in being provided with can house in described clamp The draw-in groove of lock dog.

8. folding utility drawing table as claimed in claim 1, it is characterised in that: set between described upper desktop, lower desktop There is rubber bar.